Please keep in mind that the following data are from a test unit reviewed by Golden Ears - the test unit is not necessarily a representative sample of the model being reviewed.

1. FLAC Test Result (Lossless File)

Sampling Frequency : 44.1kHz / LG - Optimus G

Test Mode : 24bit, 44.1kHz

2. WMA Test Result

Sampling Frequency : 44.1kHz / LG - Optimus G

Test Mode : 24bit, 44.1kHz

3. AAC Test Result

Sampling Frequency : 44.1kHz / LG - Optimus G

Test Mode : 24bit, 44.1kHz

4. OGG Test Result

Sampling Frequency : 44.1kHz / LG - Optimus G

Test Mode : 24bit, 44.1kHz

5. MP3 Test Result

Sampling Frequency : 44.1kHz / LG - Optimus G

Test Mode : 24bit, 44.1kHz

A given headphone output may accommodate many different headphones - in general, a smaller load impedance (on headphones) will lead to a larger sound, but at cost of accuracy in measurable data due to the increased current - this cost usually manifests in an increasingly weak bass and elevated crosstalk values as the load impedance decreases. The purpose of the tests to follow is to see how these values change as a function of impedance.

R16:16Ω / R33:33Ω / R62:62Ω / R250:250Ω

Sampling Frequency : 44.1kHz / LG - Optimus G

R16:16Ω / R33:33Ω / R62:62Ω / R250:250Ω

Test Mode : 24bit, 44.1kHz

A lower impedance is desirable on the headphone outputs of amplifiers. The output impedance is closely related to the damping factor, and is one of the most important parameters that determine headphones' performance - desktop amps tend to exhibit high impedance values, corresponding to poor performance.